WL#9217: Remove the code in log_event_old.cc
Affects: Server-8.0 — Status: Complete
code in log_event_old.cc is for generating and applying PRE_GA_XXX_ROWS_EVENT which are generated only between MySQL-5.1.0 and MySQL-5.1.15(before GA). The code is kept just for cross version compatibility. Now it is time to remove them from MySQL-8.0 That will simplify replication code and improve code readability.
This worklog just removes some code. So no design specification.
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